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to M.C. Magney on November 12, 1996. The connecting watermain has been installed. The well <br />house construction cannot commence until the well has been finished. <br /> <br />Well No. 1 When the engineering services for the construction of Well No. 3 was awarded last <br />February, it was apparent that the capacity of the new well would not be available in time to meet <br />the peak summer demand of 1996. It was also determined that Well No. 1 was capable of <br />supplying more water than the 550 gpm well pump was delivering. Back when the well was <br />developed in 1984, the demand of the utility simply did not warrant a pump as large as the well <br />could produce. A project was authorized in March 1996, to change out the existing pump with a <br />larger variable speed pump. This project was bid and awarded to E.H. Renner. This project has <br />now been completed and well No. 1 has been increased to a capacity of 900 gpm. In addition, the <br />variable speed drive allows more economical pumping at various pumping rates which can be <br />selected to pace the system demands. The project has now been completed and final payment <br />request is anticipated at the next meeting. E.H. Renner has requested compensation for work that <br />was performed beyond the scope of the contract. A change order in the amount of $1,095 is <br />anticipated to close out this project. <br /> <br />SCADA System SCADA stands for Supervisory Controls and Data Acquisition. At this <br />point, our system will have three separate locations which need to function together - two well <br />houses and an elevated tank. Radio telemetry currently links the existing well house and the tower. <br />However, the majority of the controls, which are located within the well house, are over ten years <br />old and are quite antiquated compared with current technology. Complicating the existing system <br />is the fact that the controls were revamped in 1989 when the elevated tank replaced the <br />hydroneumatic pressure tank located inside well house No. 1. The controls have been problematic <br />since that time. Some of the function switches do not work, and others are interconnected through <br />the old pressure tank controls. This SCADA system will also provide automated collection of vital <br />data on our system performance. For example, we presently have only a permanent record of <br />when well pumps came on line and the rate at which they pumped. There is no permanent record <br />of the tank elevation. The SCADA system will also be able to report alarms from our sanitary lift <br />stations, as well as the water system. Presently, the specifications for the SCADA system are <br />being finalized. Bids have not been authorized or let, but specifications are currently being <br />reviewed by staff. <br /> <br />Well No. 4 Well No. 4 needs to be pursued as soon as possible. It is common for a water <br />utility to provide a combination of water supply (well capacity) and storage such that the utility can <br />meet its peak day demand with its largest single source out-of-service. This is known as "f'mn <br />well capacity". Table 4 below shows the capacity of all wells pumping 24 hours per day. Well <br />No. 3 is assumed to have a pumping capacity of 1,000 gpm, and the City of Anoka supplying a <br />maximum of one million gallons per as our current agreement. Our system, upon completion of <br />Well No. 3 will have a total capacity of 4.31 MGD. However, with the loss of one of any of our <br />three largest sources, our finn well capacity drops significantly. Table 4 shows the system's firm <br />well capacity with each source out of service. Our maximum demand day of 2.6 MGD of the last <br />summer experienced on August 13, 1996. With additional customer growth, the utility will easily <br />exceed the firm well especially this summer. It is for this reason I am recommending we <br />commence work on Well No. 4 after the completion of Well No. 3. In setting up the contract <br />document for Well No. 3, a price for Well No. 4 was solicited, however, authorizations to proceed <br />on this portion of the work has not been given. <br /> <br /> <br />